Equipment are needed to comply with a protocol so which the interrupt-ask for (IRQ) lines is often shared. The PCI bus involves 4 interrupt strains, INTA# by INTD#, all of which are available to each system. Approximately eight PCI equipment share a similar IRQ line (INTINA# via INTINH#) in APIC-enabled https://nathanlabsadvisory.com/iso-27701-privacy-information-management-system-pims/